First developed protection filters under the PreVent® tradename. By Pepper Group Posted December 30, 2021 In 1 0 First developed protection filters under the PreVent® tradename. Recent PostsBehind Closed Doors: Urban Air Quality’s Impact on Indoor AirHow Permatron Helps Keep Data Centers Running SmoothlyLet’s Demystify Mist Eliminators. Here’s Why You Need Them.Ready or Not, Cicadas Are Coming for Your Cooling Towers